Lead Security Architect Job at Whitehall Resources Ltd (Portsmouth)

Lead Security Architect

JET's Information Security organisation protects a technology-led, cloud-native ...

Location

United Kingdom , London

Salary:

Not provided

Just Eat Takeaway.com

Expiration Date

Until further notice

Requirements

Strategic risk management expertise, with the ability to assess enterprise-wide threats and translate them into architectural roadmaps
Exceptional communication skills to engage C-Suite stakeholders, presenting complex security topics with clarity and business context
Deep technical knowledge across Cloud Security, Network Security, and Identity and Access Management (IAM) architectures
Proven ability to influence across organizational boundaries, building trusted partnerships with engineering, IT, product, and business leaders
Industry thought leadership mindset, staying ahead of emerging threats and contributing to the broader security community
Certified Information Systems Security Professional (CISSP) certification
Additional certifications such as Certified Information Security Manager (CISM) highly valued
Demonstrated experience designing and implementing enterprise-scale security frameworks that balance protection with business enablement
Strong ethical foundation and integrity, understanding the responsibility of handling sensitive information and setting team standards
Collaborative approach to security governance, with a track record of embedding security seamlessly into development and operations workflows

Job Responsibility

Define and evolve the enterprise security architecture, establishing the 12 to 18 month strategic vision and technical standards that guide the entire organization's security posture
Steer the creation of 'Golden Path' security patterns, approved, reusable frameworks that align with engineering excellence and reduce friction across teams
Influence decision-making by translating threat landscapes into actionable business risk assessments and investment priorities
Direct security governance programs, including oversight of vulnerability management, penetration testing strategies, and compliance assurance initiatives
Transform how security integrates with business operations by acting as the liaison between security, engineering, and IT departments
Champion budget planning and resource allocation for security improvement projects, ensuring strategic alignment with enterprise risk management
Drive the development of security policies and standards that balance robust protection with business agility and innovation
Establish thought leadership across the organization, setting the tone for security culture and embedding security-by-design principles company-wide
Collaborate with regulatory and legal teams to ensure all architectural decisions meet compliance requirements across jurisdictions
Mentor and guide security teams, fostering an environment of continuous learning and shared accountability for organizational resilience

Fulltime

Lead Security Architect

We are looking for a Lead Security Architect to define and evolve the company’s ...

Location

United Kingdom , London

Salary:

Not provided

InstaDeep

Expiration Date

Until further notice

Requirements

5+ years in enterprise and cloud security architecture
5+ years in identity, access, and network trust design
3+ years facilitating threat modeling and secure design reviews
Strong experience defining architecture standards and translating principles into practical patterns
Experience working across enterprise IT, cloud platforms, infrastructure, and product environments
Experience engaging with senior stakeholders across technical and non-technical functions
Security architecture at enterprise and cloud scale
Zero Trust and IAM architecture
Secure integration and trust-boundary design
Threat modeling and architecture review governance

Job Responsibility

Security architecture leadership
Define architecture principles and implementation patterns for Zero Trust, identity, authorization, trust boundaries, segmentation, secure integration, and secure access
Set the strategic direction for enterprise, cloud, and data security architecture
Define target-state architecture for Enterprise IT, Cloud, and Infrastructure, including IAM and identity trust models, reverse proxy and secure access architecture, network and data segmentation, cloud-native control patterns
Lead the development of architecture standards for secure integration between IT and product environments
Partner closely with Global IT Security Engineering on IAM, endpoint, VPN, reverse proxy, and access-tool integration
Define security architecture for AI/ML workflows, cloud-native data platforms, and ML pipelines
Establish and maintain AI/ML trust-boundary models
Support architecture and product teams on secure AI adoption
Shape standards for data governance and access design, ML pipeline trust boundaries, model and data protection patterns, secure use of AI assistants and AI-enabled workflows

Fulltime

Microsoft Lead Security Architect – Consulting, Presales

An exciting new opportunity has arisen, for an experienced Microsoft Security Ex...

Location

United Kingdom

Salary:

Not provided

Whitehall Resources Ltd

Expiration Date

Until further notice

Requirements

Extensive background in Microsoft Security
familiarity with the core Microsoft product stack, including one or more of: Defender, Sentinel, Entra, Purview etc
strong consulting skills/experience, with exposure to presales/proposition development
excellent stakeholder / engagement skills
MS Security Certifications, e.g. SC-401, SC-100 and/or SC-200

Fulltime

Lead Cloud Security Architect

Location

Sweden; United Kingdom; Poland , Stockholm; London; Łódź; Warsaw; Gdansk; Cracow

Salary:

Not provided

Arrive

Expiration Date

Until further notice

Requirements

10+ years of experience in technology, with at least 7 years in a dedicated cloud security or infrastructure security role
Demonstrated experience designing and implementing secure landing zones in a multi-cloud environment (GCP, AWS)
Hands-on experience with the architecture and strategy of cloud security tools (e.g.,Wiz, Orca)
A Bachelor’s degree in a relevant field or equivalent professional experience.

Job Responsibility

Champion and orchestrate the definition of Arrive’s cloud security architecture, from identity boundaries to network segmentation, in partnership with Data & Analytics teams, Engineering, and IT
Develop and maintain a comprehensive set of global security standards, baselines, and guidelines for cloud-native services, container security, and serverless computing
Create and champion the strategy for cloud security tooling including CSPM (Cloud Security Posture Management) and CWPP (Cloud Workload Protection) - ensuring these platforms are architected for seamless SecOps integration, automated alerting, and streamlined incident response workflows
Define and manage cloud security standards for Mergers & Acquisitions, establishing requirements for the secure migration and integration of acquired cloud environments
Own and evolve the cloud security reference architecture, providing a clear 'north star' for all engineering teams to follow
Operating 'Together,' you will act as strategic partner for the Infrastructure, SecOps, and engineering teams, orchestrating a cohesive security vision that spans the entire cloud and AI-first engineering landscape
Act as a lead security consultant and strategic partner for infrastructure, SecOps, and Engineering teams - providing expert guidance on secure cloud design patterns and landing zone configurations
Forge a dynamic partnership with the Security Platform team: co-design the infrastructure-as-code (IaC) security roadmap and introduce new architectural patterns where needed
Lead security architecture reviews and threat modeling sessions for complex cloud migrations and high-risk infrastructure changes
Act as a senior mentor and advocate for cloud security champions across the organization, helping to grow our internal technical talent

Fulltime

Lead Application Security Architect

The Application Security Architect is a senior, influential role responsible for...

Location

United Kingdom; Sweden; Poland , London; Stockholm; Łódź

Salary:

Not provided

Arrive

Expiration Date

Until further notice

Requirements

10+ years of experience in technology, with at least 7 years in a dedicated application security or product security role
Demonstrated experience designing and implementing a Secure SDLC in a cloud-native environment (GCP, AWS)
Hands-on experience with the architecture and strategy of AppSec tools (e.g., Snyk, Checkmarx, Veracode,)
Experience with securing microservices architectures, APIs, and modern web/mobile applications
Experience with securing AI/ML systems
A Bachelor’s degree in a relevant field or equivalent professional experience

Job Responsibility

Champion and orchestrate the definition of Arrive’s global Secure Software Development Lifecycle (SSDLC), from threat modeling to secure release, in close partnership with key stakeholders across Engineering and IT
Develop and maintain a comprehensive set of global security standards, baselines, and guidelines for secure coding, vulnerability management, and secure architecture
Create and champion the strategy for our application security tooling, including SAST, DAST, IAST, and Software Composition Analysis (SCA)
Define and manage the application security standards for Mergers & Acquisitions, establishing clear requirements and guiding the architectural integration of acquired technologies
Act as a lead security consultant and strategic partner for product and engineering teams, providing expert guidance on secure design patterns and vulnerability remediation
Forge a dynamic partnership with the Platform Security team: co-design the security tooling roadmap, consume their platforms where they meet global standards, and introduce new architectural patterns where needed
Lead security architecture reviews and threat modeling sessions for new applications and high-risk features
Act as a senior mentor and advocate for security engineers and champions across the organization, helping to grow our security talent
Stay at the forefront of emerging application security threats, with a particular focus on the risks associated with AI/ML systems
Collaborate with Data & AI teams to develop security principles and architectural patterns for securely integrating AI into our products

Fulltime

Lead Solution Architect - Defence & Security

Why consider joining our Defence & Security community as an Architecture Managin...

Location

United Kingdom , Bristol

Salary:

Not provided

PA Consulting

Expiration Date

Until further notice

Requirements

Proven experience leading architecture and development teams, delivering impactful, end-to-end solutions for complex client challenges
Strong understanding of the defence sector, with experience across areas such as banking, insurance, payments, or wealth management
Demonstrated ability to shape and communicate architectural strategies across multiple domains (application, business, integration)
Skilled at building trusted relationships with senior stakeholders, translating technical insight into business value
Track record of contributing to business development, including pre-sales, proposal development, and client engagement
Familiarity with architecture frameworks and modelling tools (e.g. UML, ArchiMate), with awareness of emerging trends and technologies
An established network of senior stakeholders within the financial services sector, with a proven ability to nurture and expand relationships that support business development and long-term client partnerships

Job Responsibility

Be part of our management team, helping shape and launch new service propositions while driving strategic business growth
Lead business development initiatives —building trusted client relationships, owning outcomes, and delivering innovative, high-impact solutions
Collaborate with FTSE 100 clients as a respected advisor, guiding them through complex challenges with clarity and creativity
Support your team’s growth through coaching, knowledge-sharing, and creating opportunities for them to thrive

What we offer

Health and lifestyle perks accompanying private healthcare for you and your family
25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days
Generous company pension scheme
Opportunity to get involved with community and charity-based initiatives
Annual performance-based bonus
PA share ownership
Tax efficient benefits (cycle to work, give as you earn)

Fulltime

Lead Solution Architect - Defence & Security

Join a team where you're trusted to shape your own path, manage your time, and i...

Location

United Kingdom , London

Salary:

Not provided

PA Consulting

Expiration Date

Until further notice

Requirements

Proven experience leading architecture and development teams, delivering impactful, end-to-end solutions for complex client challenges
Strong understanding of the defence sector, with experience across areas such as banking, insurance, payments, or wealth management
Demonstrated ability to shape and communicate architectural strategies across multiple domains (application, business, integration)
Skilled at building trusted relationships with senior stakeholders, translating technical insight into business value
Track record of contributing to business development, including pre-sales, proposal development, and client engagement
Familiarity with architecture frameworks and modelling tools (e.g. UML, ArchiMate), with awareness of emerging trends and technologies
An established network of senior stakeholders within the financial services sector, with a proven ability to nurture and expand relationships that support business development and long-term client partnerships

Job Responsibility

Be part of our management team, helping shape and launch new service propositions while driving strategic business growth
Lead business development initiatives —building trusted client relationships, owning outcomes, and delivering innovative, high-impact solutions
Collaborate with FTSE 100 clients as a respected advisor, guiding them through complex challenges with clarity and creativity
Support your team’s growth through coaching, knowledge-sharing, and creating opportunities for them to thrive

What we offer

Health and lifestyle perks accompanying private healthcare for you and your family
25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days
Generous company pension scheme
Opportunity to get involved with community and charity-based initiatives
Annual performance-based bonus
PA share ownership
Tax efficient benefits (cycle to work, give as you earn)

Fulltime

Lead Solution Architect - Defence & Security

Join a team where you're trusted to shape your own path, manage your time, and i...

Location

United Kingdom , Manchester

Salary:

Not provided

PA Consulting

Expiration Date

Until further notice

Requirements

Proven experience leading architecture and development teams, delivering impactful, end-to-end solutions for complex client challenges
Strong understanding of the defence sector, with experience across areas such as banking, insurance, payments, or wealth management
Demonstrated ability to shape and communicate architectural strategies across multiple domains (application, business, integration)
Skilled at building trusted relationships with senior stakeholders, translating technical insight into business value
Track record of contributing to business development, including pre-sales, proposal development, and client engagement
Familiarity with architecture frameworks and modelling tools (e.g. UML, ArchiMate), with awareness of emerging trends and technologies
An established network of senior stakeholders within the financial services sector, with a proven ability to nurture and expand relationships that support business development and long-term client partnerships

Job Responsibility

Be part of our management team, helping shape and launch new service propositions while driving strategic business growth
Lead business development initiatives —building trusted client relationships, owning outcomes, and delivering innovative, high-impact solutions
Collaborate with FTSE 100 clients as a respected advisor, guiding them through complex challenges with clarity and creativity
Support your team’s growth through coaching, knowledge-sharing, and creating opportunities for them to thrive

What we offer

Health and lifestyle perks accompanying private healthcare for you and your family
25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days
Generous company pension scheme
Opportunity to get involved with community and charity-based initiatives
Annual performance-based bonus
PA share ownership
Tax efficient benefits (cycle to work, give as you earn)

Fulltime

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Lead Security Architect

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